A.O. Smith BTN 120 THRU 400/A Series manual

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A.O. Smith BTN 120 THRU 400/A Series warranty TECHNICAL DATA VENTING Continued

Contents

MODELS BTN 120 THRU 400/A Series INSTALLATION OPERATION MAINTENANCE LIMITED WARRANTYCOMMERCIAL GAS, GLASS-LINED, TANK-TYPE WATER HEATER TABLE 3. GASAND ELECTRICAL CHARACTERISTICS ROUGH-IN-DIMENSIONSTABLE 1. ROUGH-IN-DIMENSIONS FRONT VIEW TABLE OF CONTENTS FOREWORD GROUNDING INSTRUCTIONS GENERAL SAFETY INFORMATIONPRECAUTIONS CHEMICAL VAPOR CORROSION HIGH LIMIT SWITCH FEATURESHIGH ALTITUDE INSTALLATIONS ELECTRONIC IGNITION CONTROL UNCRATING CIRCULATING PUMPDISHWASHING MACHINE REQUIREMENT LOCATING THE HEATER HARD WATER LEVELINGCLEARANCES AIR REQUIREMENTS UNCONFINED SPACE VENTINGMULTIPLE HEATER MANIFOLD CONFINED SPACE TABLE 6. TECHNICAL DATA VENTING TYPE B GAS VENT Multiple Gas Fired Tank-Type Heaters TABLE 6. TECHNICAL DATA VENTING Continued THERMOMETERS Not Supplied WATER LINE CONNECTIONSWATER POTABLE HEATING AND SPACE HEATING See pages RELIEF VALVE CODE RESTRICTIONS INSTALLATION DIAGRAMS-TOP INLET/OUTLET USAGEGENERAL DANGER TEMPERATURE SETTING SHOULD NOT EXCEED SAFE USE VERTICAL STORAGE TANK AND FORCED CIRCULATIONHORIZONTAL STORAGE TANK AND FORCED CIRCULATION TEMPERATURE AT FIXTURES. SEE WATER TEMPERATURE CONTROL TWO TEMPERATURE - ONE HEATER HIGH TEMPERATURE STORAGE WITH RECIRCULATION OF SANITIZING LOOP TWO TEMPERATURE - TWO HEATERS, ONE PRE-HEATER/ONE - BOOSTER HEATER INSTALLATION DIAGRAMS-SIDE INLET/OUTLET USAGEWITH OR WITHOUT BUILDING RECIRCULATION HEATER WITH OR WITHOUT MIXING VALVE ONE OR TWO TEMPERATURE - ONE HEATERS,HIGH TEMPERATURESTORAGE WITH OR WITHOUT RECIRCULATION HEATER WITH MIXING VALVE AND RECIRCULATED SANITIZING LOOP TWO PRE-HEATERS WITH MIXING VALVE TWO TEMPERATURE - TWO PRE-HEATERS WITH MIXING VALVE OR BOOSTERHEATER WITH OR WITHOUT BUILING RECIRCULATION TWO PRE-HEATERS WITH BOOSTER HEATER VERTICAL STORAGE TANK MEDIUM TEMPERATURE - ONE HEATER WITH AUXILIARY STORAGE TANK FORCEDCIRCULATION WITH OR WITHOUT BUILDING RECIRCULATION HORIZONTAL STORAGE TANK THREE UNIT MANIFOLD KIT MANIFOLD KITSTWO UNIT MANIFOLD KIT FOUR UNIT MANIFOLD KIT HEATER WIRING FIGURE 9 - SINGLE UNIT WIRING DIAGRAM BTN-120 THROUGH 400A TABLE 7 - GAS SUPPLY LINE SIZES IN INCHES MAXIMUM CAPACITY OF PIPE IN GAS PIPINGGAS PRESSURE REGULATOR CUBIC FEET PER HOUR APPROXIMATE TIME REQUIRED TO CONSUME OPERATIONMANIFOLD GAS PRESSURE IN INCHES OF WATER COLUMN ALL MODELS 1 CU. FT. OF GAS AT FULL CAPACITY SEQUENCE OF OPERATION LIGHTING AND OPERATION INSTRUCTIONS FOR YOUR SAFETY READ BEFORE OPERATINGOPERATING INSTRUCTIONS IGNITOR ASSEMBLY PREVENTIVE MAINTENANCECHECK THE IGNITOR ASSEMBLY WATER TEMPERATURE CONTROL CHECKING THE INPUT MAIN BURNERGAS VALVES FIGURE 11, IGNITOR HOT WATER ODOR VENTING SYSTEMREMOTE STORAGE TANK TEMPERATURE CONTROL ANODE ROD INSPECTION DELIMING SOLVENTS RECOMMENDED PROCEDURE FORTANK CLEANOUT PROCEDURE DELIMING USING FLO-JUG METHOD IGNITION MODULE SYSTEM SERVICESYSTEM DIAGNOSTICS ELECTRICAL SERVICING SEQUENCE OF OPERATION FLOW CHART REPLACEMENT PARTS, SERVICE HANDBOOKS AND TRAINING AIDSREPLACEMENT PARTS REMEDY OPERATIONAL CHECKLISTSERVICEMAN COMPLAINT 6. CLAIMPROCEDURE Model BTN Limited Warranty4. SERVICEANDREPAIREXPENSES KEEPTHISWARRANTYPOSTEDADJACENTTOTHEHEATERFORFUTUREREFERENCE